6.0k views
5 votes
How to add/subtract with polynomial denominators?

He gave us the answer but I don’t know how to solve
:\

How to add/subtract with polynomial denominators? He gave us the answer but I don-example-1
User ElderMael
by
8.2k points

1 Answer

4 votes

Answer:

Explanation:

  • Cross multiply the numerators by the denominators.


(5n)/(n-2) -(5)/(n-1) =(5n(n-1)-5(n-2))/((n-2)(n-1))

  • Foil out the numerator:


(5n)/(n-2) -(5)/(n-1) =(5n(n-1)-5(n-2))/((n-2)(n-1))=(5n^(2)-5n-5n+10 )/((n-2)(n-1))

  • Simplify!

User Syedsma
by
8.6k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories